CVE-2021-22824 Denial of service in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior)

High 7.5 Published 11 Feb 2022 Updated 3 Aug 2024

A buffer overflow in the SCADA Data Collector allows remote attackers to cause a denial of service via crafted network messages.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2021-22824?

CVE-2021-22824 is a high-severity denial of service vulnerability in Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior), published on 11 Feb 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

A CWE-120: Buffer Copy without Checking Size of Input vulnerability exists that could result in denial of service, due to missing length check on user-supplied data from a constructed message received on the network. Affected Product: Interactive Graphical SCADA System Data Collector (dc.exe) (V15.0.0.21320 and prior)

Weakness: CWE-120

Which versions are affected by CVE-2021-22824?

It affects 1 product.

Products include Schneider-Electric Interactive Graphical Scada System Data Collector.

How do I fix CVE-2021-22824?

No fix has been published for CVE-2021-22824 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2021-22824 being exploited?

There is no known exploitation of CVE-2021-22824 in the wild and no public exploit code.

Sources

Also known as GHSA-rcg3-66pc-3vp9.